Why Teradyne, Inc. (TER) stock moved
Teradyne, Inc. (TER) shares climbed 5.4% to $357.03 as of September 5, 2026, a significant gain from the prior close of $338.59. BestStocks flagged the session as a major change for TER. Below, we break down what changed for TER, why it matters for investors, how the stock reacted, and the catalysts on the calendar.
TER climbed 5.4% to $357.03
Teradyne rose 6.1% to $402.74 on August 12, 2026 with no clean company-specific catalyst that day. The move is best read as a semiconductor-equipment and AI-capex read-through: test and wafer-fab-equipment names were bid up together — KLAC +3.9%, LRCX +4.7%, AMAT +4.3%, ONTO +5.5%, AEHR +10.3% — as renewed confidence in AI-infrastructure spending (reinforced by CoreWeave's capex and Supermicro's FY27 guide after the prior close) lifted the group. Teradyne's own established exposure to AI accelerator and memory testing made it a natural participant.
What it means for Teradyne, Inc. investors
For Teradyne, Inc. investors, the recent signals are mixed, leaving the near-term picture neutral / mixed. On the constructive side: Strong 5.4% price move on light volume; Positive price momentum. Weighing against that: Teradyne fell 6.53% to $377.91 as semiconductor test equipment stocks faced a broad derisking wave on Wednesday, with peers Aehr Test Systems down 10% and FormFactor down 6% (247wallst.com); Teradyne fell 6.51% to $327.13 amid a broader semiconductor sector selloff triggered by TSMC's capital expenditure reset and profit-taking in AI-linked chip stocks, compounded by insider selling from CEO Gregory Smith and Director Marilyn Matz ahead of Q2 earnings. Wall Street's consensus price target sits at $461.50, implying +29.3% upside from $357.03. Over the past 90 days analysts logged 0 upgrades and 1 downgrade. BestStocks rates the overall signal quality low (55/100). With earnings roughly 52 days out, the next report is the most likely near-term test of the move.
TER price reaction
TER last traded at $357.03, up $18.44 (+5.45%) from the previous close of $338.59. The session traded on 0.6× average volume (below avg), so participation was unremarkable. Over the past month the stock has ranged between $335.46 and $443.14, and it currently sits about 20% of the way up that band.
Bullish and bearish analyst opinions on Teradyne, Inc. (TER)
The consensus analyst price target on Teradyne, Inc. (TER) is $461.50, 29.3% above the recent $357.03. Over the past 90 days analysts logged 0 upgrades, 9 maintains, and 1 downgrade. Here is how the bullish and bearish cases on TER line up.
The bullish case
- Wall Street's consensus price target of $461.50 implies +29.3% upside from $357.03.
- The Street's most bullish target is $550.00 (+54.0%).
- Strong 5.4% price move on light volume.
- Positive price momentum.
The bearish case
- 1 analyst downgrade in the past 90 days, most recently Baird to Neutral (2026-08-21).
- Teradyne fell 6.53% to $377.91 as semiconductor test equipment stocks faced a broad derisking wave on Wednesday, with peers Aehr Test Systems down 10% and FormFactor down 6% (247wallst.com).
- Teradyne fell 6.51% to $327.13 amid a broader semiconductor sector selloff triggered by TSMC's capital expenditure reset and profit-taking in AI-linked chip stocks, compounded by insider selling from CEO Gregory Smith and Director Marilyn Matz ahead of Q2 earnings.
- Teradyne, Inc. moved -8.92% intraday from $379.52 to $345.66.
Weighing both sides, BestStocks' composite read of recent signals is roughly balanced, as the bull-versus-bear meter above shows. This is an educational summary of the bull and bear case, not investment advice.
Analyst price targets and ratings are FMP consensus figures as of Sep 4, 2026; other aggregators may differ. High and low targets show the range of estimates, not forecasts.
Previous notable changes for TER
In-depth TER event analyses
Frequently asked questions about TER
Why did Teradyne, Inc. (TER) stock move?
Teradyne rose 6.1% to $402.74 on August 12, 2026 with no clean company-specific catalyst that day. The move is best read as a semiconductor-equipment and AI-capex read-through: test and wafer-fab-equipment names were bid up together — KLAC +3.9%, LRCX +4.7%, AMAT +4.3%, ONTO +5.5%, AEHR +10.3% — as renewed confidence in AI-infrastructure spending (reinforced by CoreWeave's capex and Supermicro's FY27 guide after the prior close) lifted the group. Teradyne's own established exposure to AI accelerator and memory testing made it a natural participant.
How much did TER stock rise?
TER gained 5.45% ($18.44) versus the prior close of $338.59, last trading at $357.03 on 0.6× average volume.
When is Teradyne, Inc.'s next earnings date?
TER's next earnings report is estimated for 2026-10-27 — about 52 days away.
What is the analyst price target for TER?
The consensus analyst price target for TER is $461.50, about 29.3% above the current $357.03. Over the past 90 days, analysts recorded 0 upgrades, 9 maintains, and 1 downgrade.
How BestStocks tracks TER
This page is generated automatically by BestStocks' change-detection system after its price and volume cleared TER-specific materiality thresholds, triggering an evidence check. It draws on 20 tracked change events for TER, cross-checked against the data sources listed below. Price, volume, and market-capitalization figures are the live intraday quote as of September 5, 2026 and refresh as new information is detected; for companies with multiple share classes, market-cap figures can differ by data source. Analyst price targets and ratings are FMP consensus. This is an educational summary of what changed and why — not personalized investment advice.